FN Archimer Export Format
PT J
TI Pervasive detachment faults within the slow spreading oceanic crust at the poorly coupled Antilles subduction zone
BT 
AF Marcaillou, Boris
   Klingelhoefer, Frauke
   Laurencin, Muriel
   Lebrun, Jean-Frédéric
   Laigle, Mireille
   Lallemand, Serge
   Schenini, Laure
   Gay, Aurelien
   Boucard, Milton
   Ezenwaka, Kingsley
   Graindorge, David
AS 1:1;2:2;3:3;4:4;5:1;6:5;7:1;8:5;9:4;10:1;11:6;
FF 1:;2:PDG-REM-GM-LAD;3:;4:;5:;6:;7:;8:;9:;10:;11:;
C1 Université Côte d’Azur, CNRS, Observatoire de la Côte d’Azur, IRD, Géoazur, Valbonne, France
   IFREMER, Dpt. of Marine Geosciences, Plouzané, France
   Université de Lille, CNRS, Univ. Littoral Côte d’Opale, UMR 8187, LOG, Laboratoire d’Océanologie et de Géosciences, Lille, France
   Géosciences Montpellier, Université de Montpellier, CNRS, Université des Antilles, Pointe à Pitre, Guadeloupe, (FWI)
   Geosciences Montpellier, Université de Montpellier, CNRS, Université des Antilles, Montpellier, France
   Geosciences Océan, UMR 6538, Université Bretagne Occidentale, Institut Universitaire Européen de la Mer, Plouzané, France
C2 UNIV COTE D’AZUR, FRANCE
   IFREMER, FRANCE
   UNIV LILLE, FRANCE
   UNIV ANTILLES, FRANCE
   UNIV MONTPELLIER, FRANCE
   UBO, FRANCE
SI BREST
SE PDG-REM-GM-LAD
UM LGO
IN WOS Ifremer UPR
   DOAJ
   copubli-france
   copubli-univ-france
IF 7.29
TC 6
UR https://archimer.ifremer.fr/doc/00725/83711/88780.pdf
   https://archimer.ifremer.fr/doc/00725/83711/88781.pdf
   https://archimer.ifremer.fr/doc/00725/83711/88782.pdf
LA English
DT Article
CR ANTITHESIS
   ANTITHESIS 3
   ANTITHESIS LEG1
   ANTITHESIS LEG2
BO Pourquoi pas ?
   L'Atalante
AB Oceanic crust formed at slow-spreading ridges is currently subducted in only a few places on Earth and the tectonic and seismogenic imprint of the slow-spreading process is poorly understood. Here we present seismic and bathymetric data from the Northeastern Lesser Antilles Subduction Zone where thick sediments enable seismic imaging to greater depths than in the ocean basins. This dataset highlights a pervasive tectonic fabric characterized by closely spaced sequences of convex-up Ridgeward-Dipping Reflectors, which extend down to about 15 km depth with a 15-to-40° angle. We interpret these reflectors as discrete shear planes formed during the early stages of exhumation of magma-poor mantle rocks at an inside corner of a Mid-Atlantic Ridge fracture zone. Closer to the trench, plate bending could have reactivated this tectonic fabric and enabled deep fluid circulation and serpentinization of the basement rocks. This weak serpentinized basement likely explains the very low interplate seismic activity associated with the Barbuda-Anegada margin segment above. 
PY 2021
PD SEP
SO Communications Earth & Environment
SN 2662-4435
PU Springer Science and Business Media LLC
VL 2
IS 1
UT 000702377200001
DI 10.1038/s43247-021-00269-6
ID 83711
ER

EF